X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/rigol/blobdiff_plain/3df147113765d5a8ba192795d2be9b7e3e295749..0b7a29d92ef3656b4c740b313f901a9d62f593a3:/rigol.c

diff --git a/rigol.c b/rigol.c
index 389253f..22a5cea 100644
--- a/rigol.c
+++ b/rigol.c
@@ -23,43 +23,8 @@ rmmod uhci_hcd; modprobe uhci_hcd
 #include <readline/readline.h>
 #include <readline/history.h>
 
-#include "png.h"
-
-
-//This routine locates a scope by VID/PID and returns an opened handle to it.
-usb_dev_handle *find_scope() {
-	struct usb_bus *bus;
-	struct usb_device *dev=NULL;
-	usb_find_busses();
-	usb_find_devices();
-	for (bus=usb_busses; bus; bus=bus->next) {
-		for (dev=bus->devices; dev; dev=dev->next) {
-			//fprintf(stderr,"Prod/dev: %04X:%04X\n",dev->descriptor.idVendor,dev->descriptor.idProduct);
-			if (dev->descriptor.idVendor==0x400 && dev->descriptor.idProduct==0x5dc) {
-				return usb_open(dev);
-			}
-		}
-	}
-	return NULL;
-}
-
-//Helper-routine: Convert a little-endian 4-byte word to an int
-void int2chars(unsigned char *buff,unsigned int a) {
-	buff[3]=(a>>24)&0xff;
-	buff[2]=(a>>16)&0xff;
-	buff[1]=(a>>8)&0xff;
-	buff[0]=(a)&0xff;
-}
-
-//Helper-routine: Convert an int to  little-endian 4-byte word
-unsigned int chars2int(unsigned char *buff) {
-	unsigned int a;
-	a=buff[3]<<24;
-	a+=buff[2]<<16;
-	a+=buff[1]<<8;
-	a+=buff[0];
-	return a;
-}
+#include "usbtmc.h"
+#include "commands.h"
 
 #define MIN(a,b) (((a)<(b))?(a):(b))
 
@@ -92,88 +57,6 @@ void printb (unsigned char *pkt, int len)
 	}
 }
 
-//Send a scpi-command to the scope. The response goes into the buffer
-//called resp, with a size of resplen. If resp==NULL, no response
-//is requested.
-int sendscpi(usb_dev_handle *dev, char* cmd, 
-		unsigned char *resp, int resplen) {
-	unsigned char *buff;
-	int len,r,i;
-	int cmdlen = strlen(cmd);
-	static unsigned char seq=0;
-
-
-	buff=malloc(0x40);
-	seq++;
-	buff[0]=1; //func
-	buff[1]=seq; buff[2]=~seq; //nseq
-	buff[3]=0;
-	int2chars(buff+4, cmdlen);
-	buff[8]=1;
-	buff[9]=0x37;
-	buff[10]=0x39;
-	buff[11]=0x39;
-	//fprintf(stderr,"Writing header len=%d\n", cmdlen);
-	//printb(buff,12);
-	r=usb_bulk_write(dev, 1, (char*)buff, 12, 1000);
-	//fprintf(stderr,"%i bytes written. Writing cmd\n",r);
-	//printb(cmd, cmdlen);
-	r=usb_bulk_write(dev, 1, cmd, cmdlen, 1000);
-	//fprintf(stderr,"%i bytes written.\n",r);
-	if (resp != NULL && resplen != 0) {
-		//send read command
-		buff[0]=2; //func
-		seq++;
-		buff[1]=seq; buff[2]=~seq; //nseq
-		int2chars(buff+4,0x40);
-		buff[8]=1;
-		buff[9]=0xA;
-		buff[10]=0;
-		buff[11]=0;
-		//fprintf(stderr,"Writing resp req header\n");
-		//printb(buff,12);
-		r=usb_bulk_write(dev, 1, (char*)buff, 12, 1000);
-		//fprintf(stderr,"%i bytes written. Reading response hdr\n",r);
-		r=usb_bulk_read(dev, 2, (char*)buff, 0x40, 1000);
-		//printb(buff,r);
-		len=chars2int(buff+4);
-		//fprintf(stderr,"%i bytes read. Resplen=%i\n",r,len);
-		for (i=0; i<(r-12); i++) {
-			if (i<resplen) resp[i] = buff[i+12];
-		}
-		//printb(resp,r-12);
-		if (len > 0x40-12) {
-			//fprintf(stderr," Reading response:\n");
-			if (resplen<len) len=resplen;
-			r=usb_bulk_read(dev, 2, (char*)resp+(0x40-12), len-(0x40-12),1000);
-			//fprintf(stderr,"%i bytes read, wanted %i.\n", r, len-(0x40-12));
-			return r+(0x40-12);
-		}
-		return len;
-	}
-	return 0;
-}
-
-//Initialize the scope.
-void initscope(usb_dev_handle *dev) {
-	int r;
-	unsigned char buff[10];
-	usb_claim_interface(dev,0);
-	//The following code isn't really necessary, the program works
-	//OK without it too.
-	r=usb_control_msg(dev, 0xC8, 9, 0, 0, (char*)buff, 4, 1000);
-	if (r < 0) {
-		fprintf (stderr, "Error %d sending init message: %s\n", 
-				r, strerror (-r));
-		fprintf (stderr, "Do you have permission on the USB device?\n");
-		exit (1);
-	}
-	if (chars2int(buff)!=0x40004dc) {
-		fprintf(stderr,"Init: buff[%i]=%x\n",r,chars2int(buff));
-	}
-	return;
-}
-
 #define HAVE_READLINE
 #ifndef HAVE_READLINE
 
@@ -201,170 +84,6 @@ void add_history (char *buf)
 }
 #endif
 
-
-void do_plot (struct usb_dev_handle *sc)
-{
-	unsigned char ch1[1024], ch2[1024];
-	int i, l;
-
-	static FILE *gnuplot=NULL;
-	FILE *fp;
-
-	l = sendscpi(sc, ":WAV:DATA? CHANEL1", ch1, 1024);
-
-	if (l != 1024) {
-		printf ("hmm. didnt' get 1024 bytes. \n"); 
-	}
-
-	l = sendscpi(sc, ":WAV:DATA? CHANNEL2", ch2, 1024);
-
-	if (l != 1024) {
-		printf ("hmm. didnt' get 1024 bytes. \n"); 
-	}
-
-	if (!gnuplot) {
-		gnuplot = popen ("gnuplot", "w"); 
-	}
-
-	fp = fopen ("temp.dat", "w");
-	for (i=0xd4;i<0x32c;i++)
-		//for (i=0;i<0x400;i++)
-		fprintf (fp, "%d %d\n", 255 - ch1[i], 255 - ch2[i]);
-	fclose (fp); 
-
-	fprintf (gnuplot, "plot 'temp.dat' using 1 with lines, 'temp.dat' using 2 with lines\n");
-	fflush (gnuplot);
-}
-
-
-#define ERROR -1e100
-
-double get_float_from_scope (struct usb_dev_handle *sc, char *var)
-{
-	unsigned char buf[1024];
-	double temp;
-	int l;
-
-	l = sendscpi(sc, var, buf, 1024);
-	if (l > 0) {
-		sscanf ((char*)buf, "%lf", &temp); 
-		return temp;
-	}
-	return ERROR;
-}
-
-
-void do_get_buf (struct usb_dev_handle *sc)
-{
-	FILE *fp;
-	int i, j, l, bp;
-	char buf[1024];
-	unsigned char ch1[1024];
-	unsigned char data[512*1024];
-	double sampfreq;
-
-	sendscpi (sc, ":STOP", NULL, 0); 
-
-	sampfreq = get_float_from_scope (sc, ":ACQ:SAMP?");
-
-	printf ("Got sampling freq: %g\n", sampfreq);  
-
-	sprintf (buf, ":TIM:SCAL %.15f", 50 / sampfreq);
-	printf ("sending scale cmd: %s\n", buf); 
-	sendscpi (sc, buf, NULL, 0);
-
-	sleep (1);
-
-	bp=0;
-	for (i=-254*1024;i< 254*1024;i += 600) {
-		sprintf (buf, ":TIM:OFFSET %.15f", i / sampfreq);
-		printf ("Sending offset cmd:  %s\n", buf); 
-		sendscpi (sc, buf, NULL, 0);
-
-		l = sendscpi(sc, ":WAV:DATA? CHANEL1", ch1, 1024);
-
-		if (l != 1024) {
-			printf ("hmm. didnt' get 1024 bytes. \n"); 
-		}
-
-		for (j=0;j<600;j++)
-			data[bp++] = ch1[j+0xd4];
-	}
-	printf ("Got %d bytes of data. \n", bp);
-
-	fp = fopen ("ch1.dump", "w");
-	fwrite (data, bp, 1, fp);
-	fclose (fp); 
-
-	sendscpi (sc, ":TIM:OFFSET 0", NULL, 0);
-}
-
-void do_get_screen(struct usb_dev_handle *sc)
-{
-	unsigned char screen[320*234];
-	unsigned char screen_conv[320*234*3];
-	unsigned char lut[256][3];
-	time_t lt;
-	char filename[256];
-	unsigned char *png;
-	int i;
-	int l;
-	int fd;
-	FILE *fp;
-	pid_t display;
-
-	/* Hide "RMT" from screen */
-	l = sendscpi(sc, ":KEY:LOCK DISABLE", NULL, 0); 
-	usleep(20000);
-
-	l = sendscpi(sc, ":LCD:DATA?", screen, sizeof(screen));
-
-	if (l != sizeof(screen)) {
-		printf ("hmm. didnt' get %d bytes, but %d\n\n", sizeof(screen), l); 
-	}
-
-	for(i = 0; i < 256; i++) {
-		lut[i][0] = ((i >> 6) * 0x55);
-		lut[i][1] = ((((i >> 3) & 7) * 0x49) >> 1);
-		lut[i][2] = (((i & 7) * 0x49) >> 1);
-	}
-
-	for(i = 0; i < sizeof(screen_conv); i += 3) {
-		screen_conv[i] = lut[screen[i/3]][0];
-		screen_conv[i+1] = lut[screen[i/3]][1];
-		screen_conv[i+2] = lut[screen[i/3]][2];
-	}
-
-	lt = time(NULL);
-	strftime(filename, sizeof(filename), "screen_%Y%m%d-%H%M%S.ppm", localtime(&lt));
-
-	fp = fopen (filename, "w");
-	fprintf(fp, "P6\n320 234\n255\n");
-	fwrite(screen_conv, sizeof(screen_conv), 1, fp);
-	fclose (fp); 
-
-	printf("Waveform saved as %s\n", filename);
-
-	display = fork();
-	switch(display) {
-		case 0:
-			execlp("display", "display", filename, NULL);
-			exit(0);
-			break;
-		case -1:
-			perror("fork");
-			break;
-		default:
-			break;
-	}
-
-	strftime(filename, sizeof(filename), "screen_%Y%m%d-%H%M%S.png", localtime(&lt));
-	fd=open(filename, O_CREAT|O_WRONLY, 0644);
-	png = lcd2png(screen, &i);
-	write(fd, png, i);
-	close(fd);
-}
-
 void child_reaper(int sig)
 {
 	pid_t child;
@@ -383,18 +102,8 @@ int main(int argc, char **argv)
 	int l;
 	struct sigaction act;
 
-	//Init libusb
-	usb_init();
-	//Locate and open the scope
-	sc=find_scope();
-	if (!sc) {
-		printf("No scope found.\n");
-		exit(1);
-	} else {
-		printf("Scope found.\n");
-	}
 	//Initialize scope
-	initscope(sc);
+	sc = usbtmc_initscope();
 	buff = malloc (1024*1024); 
 	if (buff == NULL) {
 		perror("malloc");
@@ -439,18 +148,18 @@ int main(int argc, char **argv)
 		//printb (scpi, l+2); 
 		if (strchr (scpi, '?')) {
 			//printf ("Expecting reply\n");
-			l = sendscpi(sc, scpi, buff, 1024*1024);
+			l = usbtmc_sendscpi(sc, scpi, buff, 1024*1024);
 			//printf ("Got replylen = %d.\n", l); 
 			buff[l] = 0; //zero-terminate
 			printb (buff, l);
 		} else {
 			//printf ("No reply expected\n");
-			l=sendscpi(sc,scpi,NULL,0);
+			l=usbtmc_sendscpi(sc,scpi,NULL,0);
 		}
 		free (scpi);
 	}
 	//Disable keylock, so the user doesn't have to press the 'force'-button
-	l=sendscpi(sc, ":KEY:LOCK DISABLE",NULL,0); 
+	l=usbtmc_sendscpi(sc, ":KEY:LOCK DISABLE",NULL,0); 
 
 	//Free up and exit
 	usb_release_interface(sc,0);